Michigan Water Systems
1,433 community water systems in Michigan, ranked by violation count. Data from EPA Safe Drinking Water Information System (SDWIS).
Michigan operates 1,433 community water systems regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. Together these utilities serve an estimated 7,578,379 residents, each filing compliance results with the state's primacy agency and, for federally listed contaminants, with the U.S. Environmental Protection Agency.
Across the state, SDWIS records contain 1,000 total violations, of which 314 systems carry at least one active health-based violation, a Maximum Contaminant Level (MCL) exceedance or treatment-technique failure. That represents roughly 22% of Michigan systems.
Violation counts reflect both infrastructure realities and reporting diligence, a state with more small rural systems will accumulate more monitoring-type violations without necessarily delivering worse water. Health-based violations are the stronger safety signal. A past violation does not itself indicate current unsafe water; utilities must notify customers, remediate, and publish an annual Consumer Confidence Report. All numbers below draw directly from the federal SDWIS record.
Which water systems have violations? (91)
| # | System Name | Violations | Health |
|---|---|---|---|
| 1 | CAMP INN ASSOCIATES, LLC Farmington Hills | 29 | Yes |
| 2 | BUTTONWOOD BAY MHP Southfield | 23 | Yes |
| 3 | BENTON HARBOR Benton Harbor | 16 | Yes |
| 4 | BATTLE CREEK - VERONA SYSTEM Battle Creek | 9 | Yes |
| 5 | BARAGA Baraga | 9 | Yes |
| 6 | LAPEER, CITY OF Lapeer | 8 | Yes |
| 7 | BIRMINGHAM Birmingham | 6 | Yes |
| 8 | MOUNT CLEMENS, CITY OF Mt Clemens | 6 | Yes |
| 9 | MIDLAND CO., WATER DIST. NO. 1 OF Sanford | 6 | Yes |
| 10 | HILLSDALE Hillsdale | 6 | Yes |
| 11 | SWARTZ CREEK, CITY OF Swartz Creek | 6 | Yes |
| 12 | PINCONNING, CITY OF Pinconning | 6 | Yes |
| 13 | ST. IGNACE St. Ignace | 5 | Yes |
| 14 | EMMETT TOWNSHIP Battle Creek | 5 | Yes |
| 15 | OAK POINTE Brighton | 5 | Yes |
| 16 | SHANTY CREEK - WATARS ASSOCIATION Bellaire | 5 | Yes |
| 17 | KALAMAZOO Kalamazoo | 4 | Yes |
| 18 | WATERFORD TOWNSHIP Waterford | 4 | Yes |
| 19 | HOLLAND BOARD OF PUBLIC WORKS Holland | 4 | Yes |
| 20 | BAY CITY, CITY OF Bay City | 4 | Yes |
| 21 | MOUNT PLEASANT Mt Pleasant | 4 | Yes |
| 22 | GRAND HAVEN TOWNSHIP Grand Haven | 4 | Yes |
| 23 | GROSSE POINTE PARK Grosse Pointe Park | 4 | Yes |
| 24 | FLAT ROCK Flat Rock | 4 | Yes |
| 25 | BIG RAPIDS Big Rapids | 4 | Yes |
| 26 | RIVER ROUGE River Rouge | 4 | Yes |
| 27 | ADA TOWNSHIP Ada | 4 | Yes |
| 28 | SUPERIOR TOWNSHIP Ypsilanti | 4 | Yes |
| 29 | SPRINGFIELD Springfield | 4 | Yes |
| 30 | CLINTON Clinton | 4 | Yes |
| 31 | HARBOR BEACH, CITY OF Harbor Beach | 4 | Yes |
| 32 | HAMTRAMCK Clinton | 3 | Yes |
| 33 | NEW BALTIMORE, CITY OF New Baltimore | 3 | Yes |
| 34 | TITTABAWASSEE TOWNSHIP Freeland | 3 | Yes |
| 35 | ST. CLAIR, CITY OF St. Clair | 3 | Yes |
| 36 | CEDAR SPRINGS Cedar Springs | 3 | Yes |
| 37 | HOMER Homer | 3 | Yes |
| 38 | GENESEE COUNTY WATER SYSTEM Flint | 2 | Yes |
| 39 | DEARBORN HEIGHTS Dearborn Heights | 2 | Yes |
| 40 | REDFORD TOWNSHIP Redford | 2 | Yes |
| 41 | MONROE Monroe | 2 | Yes |
| 42 | PLAINFIELD TOWNSHIP Grand Rapids | 2 | Yes |
| 43 | MONROE SOUTH COUNTY Monroe | 2 | Yes |
| 44 | JACKSON Jackson | 2 | Yes |
| 45 | OWOSSO, CITY OF Owosso | 2 | Yes |
| 46 | HARPER WOODS Roseville | 2 | Yes |
| 47 | ALBION Albion | 2 | Yes |
| 48 | BUENA VISTA TOWNSHIP Saginaw | 2 | Yes |
| 49 | IMLAY CITY, CITY OF Imlay City | 2 | Yes |
| 50 | KAWKAWLIN TOWNSHIP Bay City | 2 | Yes |
| 51 | MOUNT MORRIS, CITY OF Mt Morris | 2 | Yes |
| 52 | L'ANSE L'anse | 2 | Yes |
| 53 | LAKE ODESSA Lake Odessa | 2 | Yes |
| 54 | BERRIEN SPRINGS Berrien Springs | 2 | Yes |
| 55 | ARMADA, VILLAGE OF Armada | 2 | Yes |
| 56 | WHITE PIGEON White Pigeon | 2 | Yes |
| 57 | ORONOKO TOWNSHIP Berrien Springs | 2 | Yes |
| 58 | CASS COUNTY WATER SYSTEM Dowagiac | 2 | Yes |
| 59 | LANSING BOARD OF WATER & LIGHT Lansing | 1 | Yes |
| 60 | FLINT, CITY OF Flint | 1 | Yes |
| 61 | FERNDALE Ferndale | 1 | Yes |
| 62 | BURTON, CITY OF Burton | 1 | Yes |
| 63 | CHARTER TOWNSHIP OF GRAND BLANC Grand Blanc | 1 | Yes |
| 64 | SAULT STE MARIE Sault Ste. Marie | 1 | Yes |
| 65 | MELVINDALE Melvindale | 1 | Yes |
| 66 | MICHIGAN STATE UNIVERSITY East Lansing | 1 | Yes |
| 67 | GROSSE ILE TOWNSHIP Grosse Ile | 1 | Yes |
| 68 | MUSKEGON HEIGHTS Muskegon Heights | 1 | Yes |
| 69 | SPRING LAKE TOWNSHIP Spring Lake | 1 | Yes |
| 70 | HOLLY, VILLAGE OF Holly | 1 | Yes |
| 71 | ALLEGAN Allegan | 1 | Yes |
| 72 | NEW HAVEN, VILLAGE OF New Haven | 1 | Yes |
| 73 | KALAMAZOO LAKE SEWER & WATER AUTHORITY Saugatuck | 1 | Yes |
| 74 | MARINE CITY Marine City | 1 | Yes |
| 75 | BELLEVILLE Belleville | 1 | Yes |
| 76 | ESSEXVILLE, CITY OF Essexville | 1 | Yes |
| 77 | FOWLERVILLE, VILLAGE OF Fowlerville | 1 | Yes |
| 78 | GLADWIN, CITY OF Gladwin | 1 | Yes |
| 79 | WHITEHALL Whitehall | 1 | Yes |
| 80 | WATERVLIET Watervliet | 1 | Yes |
| 81 | NILES TOWNSHIP Niles | 1 | Yes |
| 82 | MORENCI Morenci | 1 | Yes |
| 83 | SHELBY Shelby | 1 | Yes |
| 84 | LAWTON Lawton | 1 | Yes |
| 85 | YALE, CITY OF Yale | 1 | Yes |
| 86 | LESLIE, CITY OF Leslie | 1 | Yes |
| 87 | KINGSLEY, VILLAGE OF Kingsley | 1 | Yes |
| 88 | HEMLOCK/RICHLAND TOWNSHIP Hemlock | 1 | Yes |
| 89 | SHEPHERD, VILLAGE OF Shepherd | 1 | Yes |
| 90 | OAKWOOD VILLAGE MHP Southfield | 1 | Yes |
| 91 | GLEN OAKS COMMUNITY COLLEGE Centreville | 1 | Yes |
Systems with No Violations (409)
409 water systems in Michigan have zero recorded violations. Showing the 50 largest by population served.
All Water Systems in Michigan (1,433)
Page 7 of 29, ordered by population served.
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Only community water systems (CWS) are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.